Subaru 2002 IMPREZA Service Manual page 1102

MECHANICAL
B: INSTALLATION
1) Camshaft installation:
Apply engine oil to the cylinder head at camshaft
bearing location before installing the camshaft. In-
stall the camshaft so that each valves is close to or
in contact with "base circle" of cam lobe.
CAUTION:
• When the camshafts are positioned as shown
in the figure, camshafts need to be rotated at a
minimum to align with the timing belt during in-
stallation.
• Camshaft (RH) need not be rotated when set
at the position shown in the figure.
Intake camshaft (LH): Rotate 80° ° ° ° clockwise.
Exhaust camshaft (LH): Rotate 45° ° ° ° counter-
clockwise.
A Left side cylinder head
B Right side cylinder head
(a) Intake camshaft
(b) Exhaust camshaft
CAMSHAFT
2) Camshaft cap installation:
(1) Apply fluid packing sparingly to the cap mat-
ing surface.
CAUTION:
Do not apply fluid packing excessively. Failure
to do so may cause excess packing to come out
and flow toward oil seal, resulting in oil leaks.
Fluid packing:
THREE BOND 1215 or equivalent
(2) Apply engine oil to cap bearing surface and
install the cap on camshaft as shown by identifi-
cation mark (A).
(3) Gradually tighten the cap in at least two
stages in alphabetical sequence shown in the
figure, and then tighten to specified torque.
Tightening torque:
T1: 10 N·m (1.0 kgf-m, 7.2 ft-lb)
T2: 20 N·m (2.0 kgf-m, 14.5 ft-lb)
B2M1200B
(4) Similarly, tighten the cap on exhaust side.
After tightening the cap, ensure the camshaft ro-
tates only slightly while holding it at "base" circle.
Tightening torque:
T1: 10 N·m (1.0 kgf-m, 7.2 ft-lb)
T2: 20 N·m (2.0 kgf-m, 14.5 ft-lb)
ME(TURBO)-60
T2
(A)
(E)
T1
(F)
(B)
S2M1839A
(C)
(D)
EN1321